tailieunhanh - Mining &Water Pollution Issues in BC

Estimation results for CO2 emissions are provided in Table 1. Column I reports results for the basic model, in which total population size is the only demographic aspect looked at. The results are generally in line with expectations. 3 Since all variables are expressed in logarithms, the estimated coefficients can be interpreted as elasticities. Affluence (GDPpc) has the expected positive impact on emissions and its elasticity is just below one. The manufacturing share (MANFsh) is insignificant, but a higher energy intensity (ENERGYint) is associated with higher emissions. The estimated population elasticity, for example, is close to unity. This confirms the results reported by Dietz and Rosa (1997) and York et al | ACID o n Mining Water Pollution Issuesin BC Mining and Water Pollution 1 Waste from the Mining Process 3 Types of Water Pollution from Mining 4 The Legacy of Acid Mine Drainage 5 World Gold Consumption Graph 6 Predicting Acid Mine Drainage 8 Static Testing 9 Metals the Environment 9 Kinetic Testing 10 Preventing and Mitigating Acid Mine Drainage 11 Knowing When to Say No 11 Map of Known Potential Acid Generating Sites 13 Lessons from the Past 14 The Tsolum River Experience Short Term Mine Long Term Costs 17 The Britannia Mine Costs of Coastal Contamination 18 Equity Silver Long Term-High Cost Prediction Mistakes 19 Heap Leaching and Cyanide 20 Telkwa Assessing the Real Costs of Mining 22 Mining Water and the Law 24 Jerry Schulman photo Mining XtvJ Wkter Pollution WATER IS ESSENTIAL TO LIFE ON OUR PLANET. A prerequisite of sustainable development must be to ensure uncontaminated streams rivers lakes and oceans. As Canadians we often take the presence of clean water for granted forgetting its importance and assuming that it is always available. Unfortunately the law and technology to protect this vital resource remains far from perfect. Increasingly human activities threaten the water sources on which we all depend. Mining is one such activity. In fact water has been called mining s most common casualty. 1 2 There is growing awareness of the environmental legacy of mining activities that have been undertaken with little concern for the environment. The price we have paid for our everyday use of minerals has sometimes been very high. Mining by its nature consumes diverts and can seriously pollute water resources. Changes in laws technologies and 1 James Lyon interview Mineral Policy Center Washington DC 2 BC State of the Environment Report 1993 attitudes have begun to address some of the most immediate threats posed by mineral development but there are still many areas of mining practices and regulations that need to be addressed. For example according to the

• Môi trường
• Competitive admission
• highest entry
• different stages
• Breadth
• combine specialist
• faculties
• Flexibility – double majors
• specialist fields